TheCat3004 TheCat3004
  • 16-01-2024
  • Mathematics
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Simplify the expression 13a - 6a - 9b - 31ab + 7 by combining like terms.
A. 7 - 38ab
B. 7 - 18a - 9b
C. -18a - 9b + 7
D. -38ab + 7

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